claude-api

Description

Build with Claude Messages API using structured outputs (v0.69.0+, Nov 2025) for guaranteed JSON schema validation. Covers prompt caching (90% savings), streaming SSE, tool use, model deprecations (3.5/3.7 retired Oct 2025). Use when: building chatbots/agents with validated JSON responses, or troubleshooting rate_limit_error, structured output validation, prompt caching not activating, streaming SSE parsing.

Tool Access

Full access

Inherits all available tools

Supporting Files

20 files

Additional assets for this skill

Tool Access

This skill inherits all available tools. When active, it can use any tool Claude has access to.

Supporting Assets

README.md

references/api-reference.md

references/prompt-caching-guide.md

references/rate-limits.md

references/tool-use-patterns.md

references/top-errors.md

references/vision-capabilities.md

rules/claude-api.md

scripts/check-versions.sh

templates/basic-chat.ts

templates/cloudflare-worker.ts

templates/error-handling.ts

templates/extended-thinking.ts

templates/nextjs-api-route.ts

templates/nodejs-example.ts

templates/package.json

templates/prompt-caching.ts

templates/streaming-chat.ts

templates/tool-use-advanced.ts

templates/tool-use-basic.ts

Links

GitHub Stats

14 forks

Updated 11 hours ago

Related Skills

Command Development

45.7K

This skill should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands", "create command with file references", "interactive command", "use AskUserQuestion in command", or needs guidance on slash command structure, YAML frontmatter fields, dynamic arguments, bash execution in commands, user interaction patterns, or command development best practices for Claude Code.

From plugin-dev

Agent Development

45.7K

This skill should be used when the user asks to "create an agent", "add an agent", "write a subagent", "agent frontmatter", "when to use description", "agent examples", "agent tools", "agent colors", "autonomous agent", or needs guidance on agent structure, system prompts, triggering conditions, or agent development best practices for Claude Code plugins.

From plugin-dev

Hook Development

45.7K

This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDE_PLUGIN_ROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse, Stop, SubagentStop, SessionStart, SessionEnd, UserPromptSubmit, PreCompact, Notification). Provides comprehensive guidance for creating and implementing Claude Code plugin hooks with focus on advanced prompt-based hooks API.

From plugin-dev